iosswift4avcaptureoutput

After Imigrating to Swift 4 an AVCaptureOutput function has been stopped being called?

After immigrating Swift 4 following function has been stopped being called. I could not find the reason.

  func captureOutput(_ captureOutput: AVCaptureOutput!, didOutputSampleBuffer sampleBuffer: CMSampleBuffer!, from connection: AVCaptureConnection!) {

        Code

 }
Solution

  • After making Xcode 9 making suggestion by starting writing function 

          func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {

   code

}

    Suggested and I replaced 

                func captureOutput(_ captureOutput: AVCaptureOutput!, didOutputSampleBuffer sampleBuffer: CMSampleBuffer!, from connection: AVCaptureConnection!) {

    with 

               func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {

    Now, it has been called.